公开(公告)号：DE3614148A1

公开(公告)日：1987-10-29

申请号：DE3614148

申请日：1986-04-26

Applicant: BASF AG

Inventor： MELZER MILENA ,  MEYER BERND DR ,  SOMMERMANN FRIEDRICH DR ,  KLUMPP PETER ,  KREITNER LUDWIG DR ,  LENZ WERNER DR

IPC: C09D5/23 ,  C09D7/12 ,  G11B5/706 ,  G11B5/708 ,  G11B5/71 ,  G11B5/72 ,  B05D5/12

公开(公告)号：DE3271489D1

公开(公告)日：1986-07-10

申请号：DE3271489

申请日：1982-01-28

Applicant: BASF AG

Inventor： KREITNER LUDWIG DR ,  KLAPPER JUERGEN ,  SCHOBER HORST

IPC: B02C17/16 ,  B07B1/50

Abstract: A wet comminuting machine is provided with a sieve which is located at the mill base outlet and has orifices of such dimensions that they block the passage of grinding medium. Opposite the exit surface of the sieve a plate, which can be moved toward the sieve, is provided, on the side facing the sieve, with elements for pushing through the orifices of the sieve, and can be moved manually, pneumatically, hydraulically or electrically by means of a connecting rod. The elements of the movable plate are arranged in alignment with the orifices of the sieve, and are in the form of strips or spikes, depending on the particular design of sieve.

公开(公告)号：DE3060031D1

公开(公告)日：1981-12-24

申请号：DE3060031

申请日：1980-02-20

Applicant: BASF AG

Inventor： LEUTNER BERND DR ,  SCHLIMPER HANS-ULRICH DR ,  ROTH DIETER DR ,  KREITNER LUDWIG DR ,  SPAHN HEINRICH DR

IPC: C01B33/46 ,  C01B39/02 ,  C01B39/14 ,  C09C3/04 ,  C11D3/12 ,  C01B33/28

Abstract: Storage-stable, pourable and pumpable silicate suspensions are prepared by wet milling of aluminosilicates, after the preparation of the latter, without intermediate drying.

公开(公告)号：DE3852049D1

公开(公告)日：1994-12-15

申请号：DE3852049

申请日：1988-02-26

Applicant: BASF AG

Inventor： LEHNER AUGUST ,  KOHL ALBERT ,  BOBRICH MICHAEL DR ,  ROLLER HERMANN ,  RICHTER PETER DR ,  LENZ WERNER DR ,  KREITNER LUDWIG DR ,  RUDOLF PETER DR

IPC: C08G18/12 ,  C09D5/23 ,  C09D175/00 ,  C09D175/04 ,  G11B5/702

公开(公告)号：DE3929166A1

公开(公告)日：1991-03-07

申请号：DE3929166

申请日：1989-09-02

Applicant: BASF AG

Inventor： KREITNER LUDWIG DR ,  GRAU WERNER DR ,  LEHNER AUGUST ,  REICHERT HANS DR ,  SOMMERMANN FRIEDRICH DR ,  SCHNEIDER NORBERT ,  ERHARDT GERD

IPC: G11B5/842

Abstract: The invention relates to a process for the production of magnetic recording media by preparing a dispersion of anisotropic magnetic materials in the solution of an organic binder using dispersants and further conventional additives, applying the dispersion as a layer on a nonmagnetic substrate and solidifying the the applied magnetic layer, the cylindrical milling container used being provided with an anchor-like or spiral stirrer and being filled with grinding media whose specific gravity is lower than that of the magnetic material.

公开(公告)号：DE3760432D1

公开(公告)日：1989-09-14

申请号：DE3760432

申请日：1987-04-18

Applicant: BASF AG

Inventor： MELZER MILENA ,  MEYER BERND DR ,  SOMMERMANN FRIEDRICH DR ,  KLUMPP PETER ,  KREITNER LUDWIG DR ,  LENZ WERNER DR

IPC: C09D5/23 ,  C09D7/12 ,  G11B5/708 ,  G11B5/71

公开(公告)号：DE3736998A1

公开(公告)日：1989-05-11

申请号：DE3736998

申请日：1987-10-31

Applicant: BASF AG

Inventor： LEHNER AUGUST ,  KOHL ALBERT ,  ROLLER HERMANN ,  LENZ WERNER DR ,  KREITNER LUDWIG DR ,  KOPKE HELMUT ,  SOMMERMANN FRIEDRICH DR ,  RICKER ERNST DR

IPC: C09D5/23 ,  C09D175/00 ,  C09D175/04 ,  G11B5/70 ,  G11B5/702

Abstract: The invention relates to magnetic recording media consisting of a nonmagnetic substrate and at least one magnetisable layer bonded thereon and based on a magnetic material finely divided in a binder, consisting of at least 50% by weight of polyurethane, and further conventional additives, the magnetisable layer furthermore containing a saturated, branched hydrocarbon.

公开(公告)号：DE3614149A1

公开(公告)日：1987-10-29

申请号：DE3614149

申请日：1986-04-26

Applicant: BASF AG

Inventor： MELZER MILENA ,  MEYER BERND DR ,  SOMMERMANN FRIEDRICH DR ,  KLUMPP PETER ,  KREITNER LUDWIG DR ,  LENZ WERNER DR

IPC: C09D5/23 ,  C09D7/12 ,  G11B5/708 ,  G11B5/71 ,  B05D5/12

公开(公告)号：DE3508902A1

公开(公告)日：1986-09-18

申请号：DE3508902

申请日：1985-03-13

Applicant: BASF AG

Inventor： IRGANG MATTHIAS DR ,  KREITNER LUDWIG DR ,  SCHOLZ NORBERT

IPC: C07C51/41 ,  C07C55/07 ,  C22B3/16 ,  C22B34/22 ,  C22B34/34 ,  C01G31/00 ,  C01G39/00

Abstract: The application relates to a process for the recovery of molybdenum and/or vanadium from used catalysts or oxide residues of such catalysts, by a selective leaching of the ground catalysts with solutions of aqueous oxalic acid at 50 to 150 DEG C, in particular at 90 to 120 DEG C. The leaching and grinding can also be performed simultaneously in an intensively stirred and heated container using grinding bodies.

公开(公告)号：DE3418673A1

公开(公告)日：1985-11-21

申请号：DE3418673

申请日：1984-05-19

Applicant: BASF AG

Inventor： STOCKBURGER DIETER DR ,  GRAU WERNER DR ,  KOVACS JENOE DR ,  KREITNER LUDWIG DR

IPC: G11B5/714 ,  G11B5/716 ,  G11B5/68

Abstract: The invention relates to flexible magnetic recording carriers comprising a non-magnetic flexible carrier material and two magnetic coatings applied thereupon, lying one over the other and essentially composed of magnetic material finely distributed in organic polymer binders, the magnetic materials of the two magnetic coatings differing in specific surface and coercive field strength.